Ambystoma opacum (Marbled Salamander)

Maps

Locality Map

Locality map for Ambystoma opacum (Marbled Salamander).
Map created 6 March 2024.

County Map

County map for Ambystoma opacum (Marbled Salamander).
Map created 6 March 2024.

Historical Locality Map

Historical locality map for Ambystoma opacum (Marbled Salamander). Black circles ( ) represent records after 1986, blue squares ( ) represent records between 1966 and 1986, orange triangles ( ) represent records prior to 1966. Note that more recent records might conceal underlying older records.
Map created 6 March 2024.

Historical County Map

Historical county map for Ambystoma opacum (Marbled Salamander). Black circles ( ) represent records after 1986, blue squares ( ) represent records between 1966 and 1986, orange triangles ( ) represent records prior to 1966. Note that only the most recent county record for each county is shown.
Map created 6 March 2024.

Ecological Drainage Locality Map

Ecological Drainage Units map for Ambystoma opacum (Marbled Salamander)
Ecological Drainage Units locality map for Ambystoma opacum (Marbled Salamander).
Map created 6 March 2024.

Natural Divisions Locality Map

Natural Divisions locality map for Ambystoma opacum (Marbled Salamander)
Natural Divisions and Sections locality map for Ambystoma opacum (Marbled Salamander).
Map created 6 March 2024.

Major Watersheds Locality Map

Major watersheds map for Ambystoma opacum (Marbled Salamander)
Major Watersheds locality map for Ambystoma opacum (Marbled Salamander).
Map created 6 March 2024.

Level I Ecoregion Locality Map

Level I Ecoregions map for Ambystoma opacum (Marbled Salamander)
Level I Ecoregion locality map for Ambystoma opacum (Marbled Salamander).
Map created 6 March 2024.

Level II Ecoregion Locality Map

Level II Ecoregions map for Ambystoma opacum (Marbled Salamander)
Level II Ecoregion locality map for Ambystoma opacum (Marbled Salamander).
Map created 6 March 2024.

Level III Ecoregion Locality Map

Level III Ecoregions map for Ambystoma opacum (Marbled Salamander)
Level III Ecoregion locality map for Ambystoma opacum (Marbled Salamander).
Map created 6 March 2024.

Level IV Ecoregion Locality Map

Level IV Ecoregions map for Ambystoma opacum (Marbled Salamander)
Level IV Ecoregion locality map for Ambystoma opacum (Marbled Salamander).
Map created 6 March 2024.

Native Status

Ambystoma opacum (Marbled Salamander) is native to Missouri.

Collection Summary

Ambystoma opacum (Marbled Salamander) has a total of 215 valid, non-duplicated collections representing 48 counties and 111 localities. There are a total of 98 collectors and 130 collection dates for the species. This results in a total of 143 expeditions for the species, a measure of unique date / collector(s) combinations. The earliest collection year for the species in Missouri is 1897 and its most recent collection year is 2023. The earliest and latest collection dates (independent of earliest and most recent collection years) are January 5 and November 20, respectively. If you have a new record to report, read the New Records section of the FAQ.

Collection Summary by County

Collection summary for *Ambystoma opacum* (Marbled Salamander) by county. Some values are unavailable since some records are represented solely by historical literature reports, which sometimes lack complete collecting data. Click on a county name to view more information about that county. Click on column headings to sort by that column.
County	Localities	Collections	Collectors	Dates	Expeditions	Earliest Year	Latest Year
Bollinger	2	8	5	5	6	1969	1995
Butler	5	19	7	9	12	1897	1998
Callaway	1	1	2	1	1	1995	1995
Camden	1	1	1	1	1	2013	2013
Cape Girardeau	2	2	3	2	2	2016	2016
Carter	3	4	3	3	3	1984	2001
Christian	3	3	4	3	3	1987	2013
Crawford	3	3	6	3	3	1992	2013
Dallas	1	1	8	1	1	2022	2022
Dent	1	2	1	1	1	1991	1991
Douglas	1	1	2	1	1	2008	2008
Dunklin	2	8	3	3	4	1905	1957
Franklin	1	1	1	1	1	1931	1931
Gasconade	2	3	4	2	3	1975	2015
Greene	1	2	2	1	1	2023	2023
Howell	2	2	2	2	2	2004	2021
Iron	2	2	4	2	2	2002	2020
Jefferson	2	7	5	4	5	1932	2023
Laclede	1	2	1	1	1	1991	1991
Lincoln	2	4	2	4	4	1978	2012
Madison	2	2	1	1	1	2012	2012
Maries	1	1	2	1	1	1990	1990
McDonald	1	1	2	1	1	2020	2020
Montgomery	2	4	2	3	3	1992	2004
New Madrid	1	5	2	3	3	1903	1909
Oregon	2	2	3	2	2	1986	1986
Osage	2	2	2	2	2	1993	1997
Ozark	1	1	2	1	1	2005	2005
Pemiscot	1	2	2	2	2	1903	1903
Perry	1	1	1	1	1	2005	2005
Phelps	7	12	13	8	9	1941	2015
Pulaski	2	3	2	2	2	1995	2001
Randolph	3	5	2	3	3	2018	2023
Reynolds	1	1	1	1	1	1981	1981
Ripley	3	3	3	3	3	2000	2020
Saint Charles	1	1	1	1	1	2013	2013
Saint Clair	2	2	2	2	2	1970	1970
Sainte Genevieve	1	1	1	1	1	2011	2011
Saint Francois	2	2	5	1	2	2008	2008
Saint Louis	4	15	5	8	8	1898	1992
Shannon	2	2	1	1	1	1934	1934
Stoddard	11	48	18	28	29	1897	2014
Taney	4	4	9	2	3	2007	2007
Texas	1	2	1	1	1	2003	2003
Warren	1	2	1	1	1	1980	1980
Washington	3	4	4	3	3	1990	2020
Wayne	6	6	10	6	6	1968	2003
Webster	3	3	1	2	2	2002	2016

Potential County Records

Potential counties for *Ambystoma opacum* (Marbled Salamander). Counties are listed in descending order of their likelihood of having this species. Click on a county to view more information about that county. Click on column headings to sort by that column.
Likelihood	County	Rationale	Ecoregion / Watershed
2	Boone	Same Level IV ecoregion, within 5 miles	Claypan Prairie
2	Cole	Same Level IV ecoregion, within 5 miles	Osage/Gasconade Hills
2	Henry	Same Level IV ecoregion, within 5 miles	Osage/Gasconade Hills
2	Howard	Same Level IV ecoregion, within 5 miles	Claypan Prairie
2	Miller	Same Level IV ecoregion, within 5 miles	Central Plateau
4	Audrain	Same Level IV ecoregion, within 10 miles	Claypan Prairie
4	Benton	Same Level IV ecoregion, within 10 miles	Osage/Gasconade Hills
4	Benton	Same Level IV ecoregion, within 10 miles	Cherokee Plains
4	Hickory	Same Level IV ecoregion, within 10 miles	Osage/Gasconade Hills
4	Monroe	Same Level IV ecoregion, within 10 miles	Claypan Prairie
4	Polk	Same Level IV ecoregion, within 10 miles	Springfield Plateau
4	Scott	Same Level IV ecoregion, within 10 miles	St. Francis Lowlands
6	Barry	Same Level IV ecoregion, within 20 miles	Dissected Springfield Plateau-Elk River Hills
6	Cedar	Same Level IV ecoregion, within 20 miles	Cherokee Plains
6	Morgan	Same Level IV ecoregion, within 20 miles	Osage/Gasconade Hills
6	Newton	Same Level IV ecoregion, within 20 miles	Dissected Springfield Plateau-Elk River Hills
6	Pike	Same Level IV ecoregion, within 20 miles	River Hills
6	Stone	Same Level IV ecoregion, within 20 miles	White River Hills
6	Wright	Same Level IV ecoregion, within 20 miles	Osage/Gasconade Hills
6	Wright	Same Level IV ecoregion, within 20 miles	White River Hills
6	Wright	Same Level IV ecoregion, within 20 miles	Springfield Plateau
7	Chariton	Same Level III ecoregion, within 20 miles	Central Irregular Plains
8	Bates	Same Level IV ecoregion, within 30 miles	Cherokee Plains
8	Dade	Same Level IV ecoregion, within 30 miles	Springfield Plateau
8	Lawrence	Same Level IV ecoregion, within 30 miles	Springfield Plateau
8	Macon	Same Level IV ecoregion, within 30 miles	Claypan Prairie
8	Mississippi	Same Level IV ecoregion, within 30 miles	St. Francis Lowlands
8	Pettis	Same Level IV ecoregion, within 30 miles	Cherokee Plains
8	Shelby	Same Level IV ecoregion, within 30 miles	Claypan Prairie
8	Vernon	Same Level IV ecoregion, within 30 miles	Cherokee Plains
9	Moniteau	Same Level III ecoregion, within 30 miles	Ozark Highlands

Linnaean Classification

Kingdom:: Animalia - Animals
Phylum:: Chordata - Chordates
Subphylum:: Vertebrata - Vertebrates
Class:: Amphibia Gray, 1825 - Amphibians
Order:: Caudata Scopoli, 1777 - Salamanders
Family:: Ambystomatidae Gray, 1850 - Mole Salamanders
Genus:: Ambystoma Tschudi, 1838 - Mole Salamanders
Species:: Ambystoma opacum (Gravenhorst, 1807) - Marbled Salamander

Recent Taxonomic Synonyms

(none)

Missouri Herpetological Atlas Project

Ambystoma opacum (Gravenhorst, 1807) - Marbled Salamander